With this technology, Medela breast pumps work more like breastfeeding babies.

*When pumping at Maximum Comfort Vacuum™ in the Expression phase.

1 - 2011 Medela Tracker Study

1 - Harmony breast pump

1 - PersonalFit 24mm breast shield

2 - 5oz/150mL breast milk bottles with lid and stand

1 - valve

membranes

Instructions for use

Breastfeeding Information Guide

How do I clean and sanitize the Harmony parts?

Prior to each use:

1.Disassemble the PersonalFit™ breastshield, pump body, valve, membrane and bottle. Note:All parts are to be disassembled and washed separately for the pump to function efficiently.

2.Wash remaining parts in dishwasher or in soapy water and rinse well.

3.Air dry parts on clean towel and cover when not in use.

Under normal use, the pump handle and diaphragm/stem only need to be cleaned periodically or when it is apparent they have become soiled. Do not remove small white o-ring from stem.

Do not use with Quick Clean™ Micro-Steam™ bags. Wash only according to instructions above or included in the Harmony Manual Breastpump Instructions for Use.

How much milk should I produce?

In the past it was thought that mothers needed to make more and more milk as their babies grew. Scientists now know that a healthy milk supply remains fairly constant over the six (6) months of exclusive breastfeeding. Your baby will take the amount he needs.

During the early weeks, babies eat very frequently and grow very quickly. By day 10-14, babies should regain any weight they lost after birth. For the next few months babies will gain about an ½ ounce to 1 ounce a day.

Around three (3) to four (4) months, a breastfed baby’s rate of grown begins to slow down. Your milk supply will continue to satisfy the baby until it is time to introduce solids at 6 months.

Be the end of the first week of life, women who are breastfeeding one baby normally make between 19 to 30 ounces of milk each day. Infants between one (1) and six (6) months of age normally drink an average of 19 to 30 ounces a day.

An average size “meal” for a baby is between three (3) to five (5) ounces of breastmilk. Formula is harder to digest and less well absorbed. Formula fed babies may need larger feeds. Consult your healthcare professional for advice.

How long can breast milk be kept in a cooler carrier?

You can safely store your breast milk for up to 10 hours* with Pump In Style Advanced and Freestyle breast pump cooler bags.

Direct exposure to the sun, like leaving the cooler in a car, severely reduces the cooling effectiveness.

Breast milk is safe stored in a cooler at/or below 59 degrees for up to 24 hours.

The liquid inside the cooling elements is water with food grade dye. The liquid is non-toxic.

Medela does not have recommendations for storing breast milk with dry ice. Consult a lactation consultant or healthcare provider for further information.

*When ice pack is frozen solid

Can the different size PersonalFit breast shields work with the Harmony pump?

Yes, all PersonalFit breas tshields work on the Harmony breast pump.

Whether your product instruction manual is lost, ripped, or covered in spit–up — We always have it available for you here.

Approved by Moms Like You

Rated 5 out of
5 by
Ahanner1 from
Great featuresI bought this back in 2014 for my first child after trying different brands and even though it takes time. I loved it and makes no noise. I used it during working hours

Date published: 2017-12-15

Rated 1 out of
5 by
BloatedNanj from
Broke after 3 weeksSo apparently a lot of people have this same problem with the o-ring. I’m a student-parent and am limited to pumping in the university library while I’m away from my baby. So I needed something reliable and portable. Without reading reviews ahead of time I decided to purchase the Harmony pump. For the three weeks that I was using it got the job done, and I was able to make a small supply while I was away from home. I followed all care instructions for cleaning and storing when I came home for the day. But, alas, the pump only lasted less than a month before the diaphragm and o-ring rendered this product utterly useless. And there is not option to replace the item at an affordable price either. You have to buy the whole handle!

Date published: 2018-02-07

Rated 1 out of
5 by
Sunny from
O Ring BrokenI was hesitant to purchase this product because so many reviews on the internet said the O ring broke after a few uses making the product not have suction. Mine arrived broken so I already have to purchase replacement parts. I have been trying to get in touch with Medela but their phone line disconnects me before a customer service rep answers.

Date published: 2017-12-19

Rated 4 out of
5 by
Laura123 from
Great hand pumpI lost the O ring on mine while washing before realizing it was a thing, I received free replacement part from Medela! Great customer service experience. I ended up buying a second hand pump to keep at work, the suction is great and there's no noise. Definitely the best hand pump for me. Better than the lansinoh one (more suction). Thought it was a little expensive for a hand pump, hence 4 instead of 5

Date published: 2018-01-10

Rated 5 out of
5 by
Kstar123 from
So easy to use!I was going to a concert and it was the first time away from my son for more than 4 hrs, so I knew I was going to need to pump or I’d be in pain! So I decided to try this so I can pump anywhere and I was pleasantly surprised! It is quite, so simple and I like it better than the automatic one!!

Date published: 2018-03-06

Rated 1 out of
5 by
Lety from
Hate itI wouldnt recommend this just baught it today so weak wont pump anything out of my breast tried it for 15 minutes got just a few drops of milk

Date published: 2018-02-17

Rated 5 out of
5 by
pwsc from
works!not bad!! it actually works!! works really well but only for occasional use because all that hand work can be a pain...

Date published: 2018-03-05

Rated 1 out of
5 by
Meme from
Problem with usingHello. I bought this machine but i don't know how to use it.I read all the instructions but it doesn't work. :(